CN210210775U - Hot-press forming die of shape-controllable medium-density fiberboard - Google Patents
Hot-press forming die of shape-controllable medium-density fiberboard Download PDFInfo
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- CN210210775U CN210210775U CN201920378770.8U CN201920378770U CN210210775U CN 210210775 U CN210210775 U CN 210210775U CN 201920378770 U CN201920378770 U CN 201920378770U CN 210210775 U CN210210775 U CN 210210775U
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Abstract
The utility model discloses a hot briquetting mould of controllable well density fiberboard of shape, forming die includes mould, last mould hot pressboard, fiberboard shaping chamber and lower mould, lower mould hot pressboard, and fiberboard shaping chamber comprises the hot pressboard that moves from top to bottom and the fixed lateral wall of mould, it is equipped with a pressurization seat that can go up the mould pressurization to go up the mould top, and the seat that pressurizes is put under the hydraulic stem of handstand, gives the shaping that the certain pressure of pressurization seat controlled the fiberboard by the hydraulic stem, the upper and lower mould hot pressboard all takes regular equidistance louvre and can move about so that the drawing of patterns from top to bottom. The utility model has the advantages of simple structure, easy and simple to handle, can effectively improve the work efficiency of hot press, do not need characteristics such as secondary operation.
Description
Technical Field
The utility model belongs to the technical field of the mould pressing is made, concretely relates to well density fiberboard hot briquetting mould.
Background
The fiberboard is an environment-friendly furniture building material substitute which is formed by using agricultural residues or inferior small firewood and the like as main raw materials through hot grinding, drying, gluing, paving, hot pressing, post-treatment and sanding. The artificial board processed under the conditions of heating and pressurizing after being glued is a typical representative of changing waste into valuable in the forest processing industry, and has attracted people's extensive attention from birth and become the pillar industry of the wood processing industry. Wherein, the hot press molding is an important process on the flowing water in the plate production.
At present, the domestic hot pressing process for manufacturing the medium-high density fiberboard is an intermittent multi-layer hot pressing process, and various process factors have important influence on the performance of the medium-high density fiberboard. In the hot pressing process, the action of the moisture in the plate blank is to increase the plasticity and the thermal conductivity of the fibers, so the proper moisture content is guaranteed for the quality of the plate, generally controlled at about 10 percent, if the moisture content is too high, the density gradient of a surface layer and a core layer is increased, the bonding force between the fibers of the core layer is poor, and when the pressure is reduced and steam is exhausted, water vapor is difficult to remove, so that bubbling and layering are caused in the plate, if the moisture content is too low, the plate surface is soft, the thickness of a precuring layer is thick, and the strength of the. In addition, the heat pressing is continuously improved along with the temperature, the concentration of the water vapor is more and more, the pressure of the water vapor is more and more, and at the moment of demolding, the volume of the water vapor suddenly expands due to the pressure of the heat pressing machine being cancelled, and the middle cementing layer is pulled open by the explosive force of the water vapor, so that the plate frying phenomenon is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a high efficiency, low energy consumption, simple structure, convenient operation use straw class furfural sediment as the hot briquetting mould of raw materials preparation medium density fiberboard to solve current inefficiency, operate complicated, secondary operation, mould exhaust scheduling problem unsmooth.
In order to solve the technical problem, the utility model discloses a technical scheme is: a hot-pressing forming die for a shape-controllable medium-density fiberboard is characterized in that: the forming die comprises an upper die, an upper die hot pressing plate, a fiberboard forming cavity, a lower die hot pressing plate and a lower die which are sequentially stacked and combined from top to bottom, wherein the fiberboard forming cavity is composed of the upper die hot pressing plate, the lower die hot pressing plate and the surrounding die fixing side walls, the upper die hot pressing plate and the lower die hot pressing plate can move up and down and be detached in a space surrounded by the die fixing side walls, and the upper die and the lower die are extruded and pressed into the fiberboard forming cavity and then are exposed to a height greater than.
The two ends of the forming die are in a sawtooth shape, the right side of the upper die is provided with at least two upper die right lugs, and the upper die hot pressing plate and the lower die are respectively provided with the upper die hot pressing plate right lugs and the lower die right lugs which are the same in number at the positions corresponding to the upper die right lugs; the left side of the upper die is provided with at least three upper die left convex blocks, and the corresponding positions of the upper die hot pressing plate and the lower die and the upper die left convex blocks are respectively provided with the upper die hot pressing plate left convex blocks and the lower die left convex blocks which are the same in quantity; the size of each side bump is the same as the adjacent interval size of the opposite side bump; and the left side and the right side of the fixed side wall of the mold are respectively provided with a left mold groove and a right mold groove which correspond to the sizes of the corresponding lugs.
The saw-toothed shape comprises a rectangle, a raised reinforcing rib and a corrugated shape.
And a pressurizing seat capable of pressurizing the upper die is arranged above the upper die, the pressurizing seat is connected below the inverted hydraulic rod, and the hydraulic rod provides certain pressure for the pressurizing seat to control the forming of the fiberboard.
The upper die hot pressing plate and the lower die hot pressing plate are made of stainless steel plates or aluminum alloy plates, and the thickness of the upper die hot pressing plate and the thickness of the lower die hot pressing plate are 0.5-5.5 mm.
The upper die and the lower die can be made of copper or copper-aluminum alloy materials, and the thickness is 10-30 mm.
The upper die, the upper die hot pressing plate, the lower die and the lower die hot pressing plate are uniformly provided with regular equidistant heat dissipation holes with the diameter of 2 mm.
The utility model discloses be applied to and use straw class furfural sediment to prepare the hot briquetting technology of medium density fiberboard as the raw materials in, efficient, the energy consumption is low, simple structure, convenient operation avoid current inefficiency, operation complicacy, secondary operation, mould steam extraction scheduling problem not unobstructed.
Drawings
Fig. 1 is a front view of an embodiment 1 of the mold of the present invention;
fig. 2 is a front view of the embodiment 2 of the mold of the present invention;
FIG. 3 is a schematic structural view of the pressurizing seat and the hydraulic rod of the present invention;
in the figure: 1-upper mould; 2-upper die hot pressing plate; 3-a fiberboard forming cavity; 4-fixing the side wall of the mold; 5-heat dissipation holes; 6-lower die hot pressing plate; 7-lower die; 8-upper mold right bump; 9-upper die hot pressing plate right bump; 10-right groove of the mold; 11-lower die right bump; 12-upper die left projection; 13-upper die hot pressing plate left lug; 14-left groove of mold; 15-lower die left bump; 16-a pressure seat; 17-hydraulic lever.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the hot-press forming die for the medium-density fiberboard with a controllable shape comprises an upper die 1, an upper die hot-press plate 2, a fiberboard forming cavity 3, a lower die hot-press plate 6 and a lower die 7 which are sequentially overlapped and combined from top to bottom, wherein the fiberboard forming cavity 3 is formed by the upper die hot-press plate 2, the lower die hot-press plate 6 and peripheral die fixing side walls 4, the upper die hot-press plate and the lower die hot-press plate can move up and down and be detached in a space surrounded by the die fixing side walls 4, and the upper die 1 and the lower die 7 are extruded into the fiberboard forming cavity 3 and then are exposed to a height greater than the die fixing side walls 4, so that a material frame does not need.
As shown in fig. 3, a pressurizing seat 16 capable of pressurizing the upper mold 1 is provided above the upper mold 1, the pressurizing seat 16 is connected below an inverted hydraulic rod 17, and the molding of the fiberboard is controlled by applying a certain pressure to the pressurizing seat 16 by the hydraulic rod 17.
The upper die hot pressing plate 2 and the lower die hot pressing plate 6 are made of stainless steel plates or aluminum alloy plates, and the thickness of the upper die hot pressing plate and the lower die hot pressing plate is 0.5-5.5 mm according to the consideration of heat transfer efficiency, steam exhaust and other factors.
The upper die 1 and the lower die 7 can be made of copper or copper-aluminum alloy materials according to the heat transfer, material strength and other factors, and the thickness is 10-30 mm.
Go up mould 1, go up mould hot pressing board 2, lower mould 7 and 6 equipartitions of lower mould hot pressing board equidistance louvre 5 that regular diameter is 2mm to vapor can in time discharge when the hot briquetting, phenomenons such as fracture, fried board appear in the fibreboard that prevents finally to make.
The production process of the utility model is as follows: firstly, a lower die hot pressing plate 6 and a lower die 7 are sequentially placed in a die; generally, the compression ratio H/H of the hot-press molded fiberboard is = 2-12 (H is the height of paving the raw material before molding, H is the thickness of the molded fiberboard of the molded product, the looser the raw material is, namely, the smaller the bulk density is, the larger the compression ratio is), and then the raw material after swelling and grinding is uniformly paved on the lower mold hot press plate 6 according to the requirement; and finally, sequentially placing the upper die hot pressing plate 2 and the upper die 1, and placing the whole filled die into a hot pressing system for extrusion forming. When demoulding, stopping heating and emptying the whole extruded mould, continuously moving the hydraulic rod of the hydraulic system downwards, after the lower mould 7, the lower mould hot pressing plate 6 and the fiberboard are integrally demoulded, moving the hydraulic rod upwards, taking down the mould and inverting the mould, using the used upper mould as the lower mould when the mould is used next time, using the upper mould hot pressing plate as the lower mould hot pressing plate, continuously repeating the operation of packing hot pressing, and repeating the operation in such a way to improve the working efficiency. When the hot-press molding process is adopted, the paved raw material is a ground raw material with the water content of 50-83%, the influence of the high temperature of a hot-press system can not be caused, the problem that the raw material is dried in advance and cannot be subjected to hot-press molding can not be caused, and the quality of the hot-press fiberboard can be effectively improved.
Example 2
As shown in fig. 2, the forming mold has the same structure as the main body of embodiment 1, and the difference is that two ends of the forming mold are in a zigzag shape, the zigzag shape includes a rectangle, a raised rib and a corrugated shape, and the forming mold is in a rectangle in this embodiment and fig. 2. Two upper die right lugs 8 are arranged on the right side of the upper die 1, and upper die hot pressing plate right lugs 9 and lower die right lugs 11 which are the same in number are respectively arranged at the positions of the upper die hot pressing plate 2 and the lower die 7 corresponding to the upper die right lugs 8; the left side of the upper die 1 is provided with three upper die left convex blocks 12, and the corresponding positions of the upper die hot pressing plate 2 and the lower die 7 and the upper die left convex blocks 12 are respectively provided with an upper die hot pressing plate left convex block 13 and a lower die left convex block 15 which are the same in quantity; the size of each side bump is the same as the adjacent interval size of the opposite side bump; the left side and the right side of the die fixing side wall 4 are respectively provided with a die left groove 14 and a die right groove 10 corresponding to the sizes of the corresponding bumps.
The formed fiber board forms sawteeth with two ends capable of being spliced and formed, so that the fiber board can be spliced into a product with a specified size by omitting the fiber secondary processing or gluing step. According to actual requirements, the die can be designed into other shapes, so that hot-pressed fiber boards in various shapes can be produced and prepared, and the requirements of customers are met.
Claims (7)
1. A hot-pressing forming die for a shape-controllable medium-density fiberboard is characterized in that: forming die is including last mould (1), last mould hot pressboard (2), fibreboard shaping chamber (3) and lower mould hot pressboard (6), lower mould (7) that from top to bottom superpose the combination in proper order, fibreboard shaping chamber (3) comprises last mould hot pressboard (2), lower mould hot pressboard (6) and fixed lateral wall (4) of mould all around, and the upper and lower mould hot pressboard can move about and dismantle from top to bottom in the space that mould fixed lateral wall (4) enclose, goes up mould (1) and lower mould (7) and extrudes behind the fibreboard shaping chamber (3) of impressing and expose highly to be greater than mould fixed lateral wall (4).
2. The thermoforming mold of claim 1, wherein: the two ends of the forming die are in a sawtooth shape, the right side of the upper die (1) is provided with at least two upper die right lugs (8), and the upper die hot pressing plate (2) and the lower die (7) are respectively provided with an upper die hot pressing plate right lug (9) and a lower die right lug (11) which are the same in number and correspond to the upper die right lugs (8); the left side of the upper die (1) is provided with at least three upper die left lugs (12), and the corresponding positions of the upper die hot pressing plate (2) and the lower die (7) and the upper die left lugs (12) are respectively provided with an upper die hot pressing plate left lug (13) and a lower die left lug (15) which are the same in number; the size of each side bump is the same as the adjacent interval size of the opposite side bump; the left side and the right side of the fixed side wall (4) of the mold are respectively provided with a left mold groove (14) and a right mold groove (10) which correspond to the sizes of the corresponding bumps.
3. The hot-press forming die for the medium-density fiberboard with controllable shape as claimed in claim 2, wherein: the saw-toothed shape comprises a rectangle, a raised reinforcing rib and a corrugated shape.
4. A hot-press forming die for a shape-controllable medium density fiberboard according to claim 1 or 2, wherein: a pressure seat (16) capable of pressurizing the upper die (1) is arranged above the upper die (1), the pressure seat (16) is connected below an inverted hydraulic rod (17), and the hydraulic rod (17) gives a certain pressure to the pressure seat (16) to control the forming of the fiberboard.
5. A hot-press forming die for a shape-controllable medium density fiberboard according to claim 1 or 2, wherein: the upper die hot pressing plate (2) and the lower die hot pressing plate (6) are made of stainless steel plates or aluminum alloy plates, and the thickness of the upper die hot pressing plate and the lower die hot pressing plate is 0.5-5.5 mm.
6. A hot-press forming die for a shape-controllable medium density fiberboard according to claim 1 or 2, wherein: the upper die (1) and the lower die (7) can be made of copper or copper-aluminum alloy materials, and the thickness is 10-30 mm.
7. A hot-press forming die for a shape-controllable medium density fiberboard according to claim 1 or 2, wherein: the upper die (1), the upper die hot pressing plate (2), the lower die (7) and the lower die hot pressing plate (6) are uniformly distributed with regular equidistant heat dissipation holes (5) with the diameter of 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378770.8U CN210210775U (en) | 2019-03-25 | 2019-03-25 | Hot-press forming die of shape-controllable medium-density fiberboard |
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| CN201920378770.8U CN210210775U (en) | 2019-03-25 | 2019-03-25 | Hot-press forming die of shape-controllable medium-density fiberboard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892826A (en) * | 2020-07-24 | 2020-11-06 | 中国科学院山西煤炭化学研究所 | Furfural residue block material, preparation method and application |
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2019
- 2019-03-25 CN CN201920378770.8U patent/CN210210775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892826A (en) * | 2020-07-24 | 2020-11-06 | 中国科学院山西煤炭化学研究所 | Furfural residue block material, preparation method and application |
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